One January morning, officials woke up to discover that the dam had been completed by eight beavers. Not only had these beavers built the dam in almost the same spots that humans had originally planned construction, but they effectively saved Czech leadership 30 million korunas (about $1.2 million).

“[Beavers] built the dams without any project documentation and for free,” says Bohumil Fišer, Brdy’s Protected Land Administration (PLA) chief.

No environmental impact study. No permit. Non union workforce. Check the materials - did they use properly rated materials? Cutting corners until it cost nothing. Beavers aren't even trained engineers!

But seriously this is excellent news. Love nature aligning with human interests. Makes big money want to save animals.